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    "https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix\n",
    "\n",
    "\n",
    "Runtime: 32 ms, faster than 66.11% of C++ online submissions for Kth Smallest Element in a Sorted Matrix.\n",
    "Memory Usage: 15.3 MB, less than 11.31% of C++ online submissions for Kth Smallest Element in a Sorted Matrix.\n",
    "\n",
    "\n",
    "```cpp\n",
    "#include<bits/stdc++.h> \n",
    "\n",
    "using namespace std;\n",
    "\n",
    "class Solution {\n",
    "public:\n",
    "    int kthSmallest(vector<vector<int>>& matrix, int k) {\n",
    "        //3:44\n",
    "        vector<int> nums;\n",
    "        for (auto row: matrix) {\n",
    "            for (int num : row) {\n",
    "                nums.push_back(num);\n",
    "            }\n",
    "        }\n",
    "        sort(nums.begin(), nums.end());\n",
    "        return nums[k-1];\n",
    "        //3:44\n",
    "    }\n",
    "};\n",
    "```"
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